Home / 129,865,019.14-179,216,627.48-74,109,329.70

Finding the Fourth Proportional to 129,865,019.14, 179,216,627.48 and 74,109,329.70

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Solution

The fourth proportional to 129,865,019.14, 179,216,627.48 and 74,109,329.70 is: 102,272,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865,019.14 : 179,216,627.48 = 74,109,329.70 : x
  2. Step 2: Convert to fraction form
    129,865,019.14/179,216,627.48 = 74,109,329.70/x
  3. Step 3: Cross multiply
    129,865,019.14x = 179,216,627.48 × 74,109,329.70
  4. Step 4: Simplify right side
    129,865,019.14x = 13,281,624,133,637,400
  5. Step 5: Solve for x
    x = 13,281,624,133,637,400/129,865,019.14
  6. Step 6: Final answer
    x = 102,272,530.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.